Equipment for preparing activated carbon from bamboo reed

Abstract

The invention discloses equipment for manufacturing activated carbon from bamboo reed, and belongs to the technical field of activated carbon processing, the equipment comprises a material drying cylinder, a carbonization cylinder, a high-temperature activation cylinder, a water spraying activation cylinder and a cooling cylinder which are connected with one another, and sealing rings which are connected with one another are arranged among the material drying cylinder, the carbonization cylinder, the high-temperature activation cylinder, the water spraying activation cylinder and the cooling cylinder; a communicated feeding part is arranged on the material drying cylinder, a communicated discharging part is arranged on the cooling cylinder, a material moving structure is arranged among the carbonization cylinder, the high-temperature activation cylinder and the water spraying activation cylinder, a feeding conveying structure is arranged in the material drying cylinder, and a discharging conveying structure is arranged in the cooling cylinder. The internal structure of an original traditional kiln is changed, the appearance of a traditional carbonization kiln is also changed, and the novel production device for producing the activated carbon from the bamboo reeds is convenient to maintain, can be used for carbonizing various raw materials for multiple purposes, reduces the cost and improves the efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of activated carbon processing, and in particular relates to a device for making activated carbon from Phragmites australis. Background Art

[0002] Phragmites australis is a perennial herb with a fast reproduction rate and high unit yield. The average annual yield per mu can reach 3-5 tons. It is widely distributed and relatively easy to obtain, which provides a sufficient material basis for it as a raw material for activated carbon. The plant tissues are mainly cellulose, hemicellulose and lignin, and the ash content is less than 0.5%. This composition characteristic enables Phragmites australis to be converted into high-quality activated carbon after proper treatment, and has the potential to become a good raw material for the preparation of activated carbon. When making activated carbon from Phragmites australis, it needs to be cut into a certain length and cut into Phragmites australis segments.

[0003] Existing activated carbon equipment and traditional carbonization kilns all adopt direct exhaust methods and flue gas treatment devices. The emissions exceed the standards during production, the exhaust flue gas is not fully utilized, and certain pollution is caused. They do not meet the carbon reduction requirements and cannot achieve the purpose of energy conservation and emission reduction. In addition, the existing traditional carbonization kilns have a single shape, and some improved kilns only change the appearance, which does not really achieve the purpose of carbon reduction. Summary of the invention

[0004] The embodiment of the present invention provides a device for making activated carbon from Phragmites australis to solve the problems in the prior art.

[0005] The embodiment of the present invention adopts the following technical scheme: a reed bamboo activated carbon production equipment, including interconnected material drying cylinder, carbonization cylinder, high-temperature activation cylinder, water spray activation cylinder and cooling cylinder, wherein mutually connected sealing rings are provided between the material drying cylinder, carbonization cylinder, high-temperature activation cylinder, water spray activation cylinder and cooling cylinder, the material drying cylinder is provided with a connected feeding part, the cooling cylinder is provided with a connected discharging part, a material moving structure is provided between the carbonization cylinder, high-temperature activation cylinder and water spray activation cylinder, a feeding conveying structure is provided in the material drying cylinder, and a discharging conveying structure is provided in the cooling cylinder.

[0006] Furthermore, the feed conveying structure includes a feed motor and a feed spiral blade, the feed motor is located on the side wall of the material drying cylinder, the feed spiral blade is rotatably connected to the material drying cylinder and the feed spiral blade is connected to the main shaft of the feed motor.

[0007] Furthermore, the outer wall of the material drying cylinder is wrapped with a heat-insulating material for sealing.

[0008] Furthermore, a gas outlet is provided on the top of the carbonization cylinder, and a smoke recovery combustion heating chamber is provided on the top of the gas outlet.

[0009] Furthermore, an electromagnetic heating wire is provided in the high-temperature activation cylinder.

[0010] Furthermore, a high-temperature water pipe is provided at the inner top of the water spray activation cylinder, a plurality of atomizing nozzles are arranged at equal intervals on the high-temperature water pipe, a water inlet pipe extending to the outside of the water spray activation cylinder is provided on the high-temperature water pipe, and a valve is provided on the water inlet pipe.

[0011] Furthermore, an interlayer is provided in the cooling cylinder, and circulating cooling water is provided in the interlayer.

[0012] Furthermore, the discharging conveying structure includes a discharging motor and a discharging spiral impeller, the discharging motor is located on the cooling cylinder, the discharging spiral impeller is rotatably connected to the cooling cylinder and the discharging spiral impeller is connected to the main shaft of the discharging motor.

[0013] Furthermore, the material moving structure includes a first rotating shaft, a second rotating shaft and a rotating motor, the first rotating shaft and the second rotating shaft are respectively rotatably connected to the carbonization cylinder and the water spray activation cylinder, two first sprockets and two second sprockets are respectively provided on the first rotating shaft and the second rotating shaft, a chain is provided between the first sprocket and the second sprocket, a mounting plate is provided between the two chains, and a plurality of moving rods arranged at equal intervals are provided at the bottom of the mounting plate.

[0014] At least one of the above technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0015] Firstly, the present invention changes the internal structure of the original traditional kiln and also changes the appearance of the traditional carbonization kiln, thereby manufacturing a new type of activated carbon production device for producing reed bamboo, which is easy to maintain, can be used for carbonizing various raw materials for multiple purposes, reduces costs, and improves efficiency.

[0016] Secondly, when the reed bamboo segments of the present invention are carbonized through the carbonization cylinder, smoke can be discharged outwards through the exhaust pipe, and the smoke recovery combustion heating room can make the smoke recovered and burned, and these combustible components can be burned again to release heat; the room gas is discharged and the pollutant concentration is reduced.

[0017] Thirdly, the present invention realizes continuous production, stable and adjustable temperature, improved product quality, high raw material utilization rate and high carbon output ratio, and achieves intelligent control mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 A top view of the present invention;

[0021] Figure 3 for Figure 2 Sectional view along line AA;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the material moving structure in the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the material drying cylinder in the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the cooling cylinder in the present invention;

[0025] Reference numerals

[0026] Material drying cylinder 1, feeding part 11, carbonization cylinder 2, air outlet cylinder 21, flue gas recovery combustion heating chamber 22, high temperature activation cylinder 3, electromagnetic heating wire 31, water spray activation cylinder 4, high temperature water pipe 41, atomizing nozzle 42, water inlet pipe 43, valve 44, cooling cylinder 5, interlayer 51, discharge part 52, sealing ring, material moving structure 7, first rotating shaft 71, second rotating shaft 72, rotating motor 73, first sprocket 74, second sprocket 75, chain 76, mounting plate 77, moving rod 78, feeding motor 8, feeding spiral blade 81, discharge motor 9, discharge spiral impeller 91. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] Reference Figures 1 to 6As shown, the present invention provides a new type of activated carbon production equipment from reed, which mainly includes a material drying cylinder 1, a carbonization cylinder 2, a high-temperature activation cylinder 3, a water spray activation cylinder 4 and a cooling cylinder 5 which are sequentially connected to each other. These functional cylinders are connected by sealing rings to form a complete closed system. Among them, a feeding part 11 is provided on the upper part of the material drying cylinder 1 for continuous input of materials; and a discharging part 52 is provided on the upper part of the cooling cylinder 5 for the discharge of finished products. In order to realize the orderly transportation of materials, a material moving structure 7 is arranged between the carbonization cylinder 2, the high-temperature activation cylinder 3 and the water spray activation cylinder 4. At the same time, a feeding conveying structure is installed in the material drying cylinder 1, and a discharging conveying structure is provided in the cooling cylinder 5. These structures together ensure the continuity and stability of the entire production process.

[0030] It should be noted that the material drying cylinder 1, carbonization cylinder 2, high-temperature activation cylinder 3, water spray activation cylinder 4 and cooling cylinder 5 are all made of 310S high-grade stainless steel and processed into round cylinders. The lengths of the material drying cylinder 1, carbonization cylinder 2, high-temperature activation cylinder 3, water spray activation cylinder 4 and cooling cylinder 5 are 14m, 10m, 8m, 8m and 8m respectively.

[0031] During use, the reed segments are transported to the material drying cylinder 1 through the feeding part 11, and the reed segments are transported forward by the feeding and conveying structure, so that the reed segments can be continuously pushed and conveyed forward. The carbonization cylinder 2 carbonizes the reed segments, the high-temperature activation cylinder 3 activates the reed segments at high temperature, the water spray activation cylinder 4 sprays and activates the reed segments, and the cooling cylinder 5 cools the reed segments. The activated carbon can be discharged outward through the discharging part 52 through the discharging conveying structure.

[0032] In a preferred embodiment of the present invention, the feeding and conveying structure adopts a method of combining a feeding motor 8 with a feeding spiral blade 81. Specifically, the feeding motor 8 is fixed to the side wall of the material drying cylinder 1, and drives the feeding spiral blade 81 in the cylinder to rotate through its main shaft. This design not only ensures the continuity of material transportation, but more importantly, the material is evenly turned through the rotation of the spiral blade, greatly improving the drying effect. In addition, the feeding spiral blade 81 is rotatably connected to the material drying cylinder 1 by bearing support, which effectively reduces the operating resistance and prolongs the service life of the equipment.

[0033] In order to further improve the thermal efficiency of the equipment, a layer of insulation material is wrapped on the outer wall of the material drying cylinder 1 and sealed. This insulation design can not only reduce heat loss, but also maintain the stability of the temperature inside the cylinder, which is of great significance to improving product quality. It is preferred to use high-temperature resistant insulation cotton as the insulation material, which not only ensures the insulation effect, but also has a good cost performance. The feeding motor 8 drives the feeding spiral blade 81 to rotate, which can drive the reed segment to turn over and continuously transport it forward, and use the waste heat to directly dry the material so that the reed segment can be carbonized later. The insulation material is provided to keep the temperature warm during drying.

[0034] Next, a gas outlet 21 is designed on the top of the carbonization cylinder 2, and a smoke recovery combustion heating chamber 22 is installed above it. This design reflects a major innovation of the present invention, that is, the recycling of smoke is realized. When the smoke generated by the reed during the carbonization process rises through the gas outlet 21, it enters the smoke recovery combustion heating chamber 22 for secondary combustion. This not only reduces energy consumption, but also significantly reduces the emission of pollutants, reflecting the environmental protection concept of the present invention.

[0035] When the reed section passes through the carbonization tube 2 for carbonization, the smoke can be discharged outward through the exhaust tube 21, and the smoke recovery combustion heating chamber 22 can make the smoke recovered and burned, and these combustible components can be burned again to release heat; the chamber gas is discharged and the pollutant concentration is reduced.

[0036] An electromagnetic heating wire 31 is innovatively arranged inside the high-temperature activation cylinder 3. The electromagnetic heating wire 31 can continuously heat the temperature of the high-temperature activation cylinder 3 to 1100 degrees. This heating method is more precise and controllable than traditional heating, and can accurately adjust the temperature to the required temperature, ensuring the temperature stability of the activation process. The installation position of the electromagnetic heating wire 31 has been optimized to ensure uniform heating and avoid local overheating.

[0037] It is worth mentioning that a high-temperature water pipe 41 is installed on the inner top of the water-spraying activation cylinder 4, and a number of atomizing nozzles 42 are evenly distributed thereon. The high-temperature water pipe 41 is connected to the external water supply system through a water inlet pipe 43 extending outside the cylinder, and a regulating valve 44 is provided on the water inlet pipe 43. By controlling the opening of the valve 44, the spraying amount can be accurately adjusted, thereby achieving accurate control of the activation process. The design of the atomizing nozzle 42 is particularly critical, and its spraying method can make the water mist evenly cover the entire activation area, thereby improving the contact efficiency between water and materials.

[0038] When water spraying is required, valve 44 is opened, and water is sprayed onto the carbonized material through atomization to prevent local overheating: During the carbonization process, the material will undergo a series of complex thermochemical reactions, such as dehydration, pyrolysis, etc. If there is no proper temperature control, local overheating is likely to occur. Sprayed water can absorb heat. When the local temperature is too high, the evaporation of atomized water will take away the heat, so that the carbonization reaction can proceed within a relatively uniform temperature range; stabilize the reaction temperature: the carbonization reaction usually needs to be carried out within a specific temperature range to obtain the ideal carbonization product. Sprayed water can be used as an effective temperature regulation method. By controlling the injection amount of atomized water, the carbonization temperature can be stabilized near the target temperature. For example, for some biomass carbonization, the appropriate carbonization temperature may be between 400-600°C. When the temperature tends to rise above this range, spraying atomized water can lower the temperature and return it to the appropriate range.

[0039] This modular design concept not only improves the maintenance convenience of the equipment, but also reserves sufficient adjustment space for subsequent process optimization. The entire system realizes the continuity and automation of the production process through a carefully designed transmission mechanism and control system, significantly improving production efficiency and product quality stability.

[0040] In another embodiment of the present invention, the structural design of the cooling cylinder 5 is also quite distinctive. An interlayer 51 is arranged inside it, and cooling water is circulated in the interlayer 51 to form a complete cooling system. The flow of circulating water can cool the carbonized material, so that the carbonized material is cooled, and the purpose of continuous production while discharging the material is achieved. The advantage of this interlayer cooling design is that the cooling effect is more uniform, and the flow rate and temperature of the cooling water can be adjusted according to actual needs to achieve precise temperature control. By reasonably designing the thickness of the interlayer and the water flow channel, not only the cooling efficiency is ensured, but also the problems such as product cracking caused by local temperature drops are avoided.

[0041] In order to achieve continuous output of finished products, the present invention designs a discharging and conveying structure in the cooling cylinder 5. Specifically, the structure includes a discharging motor 9 and a discharging spiral impeller 91. The discharging motor 9 is fixedly installed at an appropriate position of the cooling cylinder 5 and is connected to the discharging spiral impeller 91 through its main shaft. The discharging spiral impeller 91 is rotatably connected to the cooling cylinder 5 through a bearing. This design not only ensures the smoothness of operation, but also reduces mechanical wear. It is worth noting that the pitch and speed of the discharging spiral impeller 91 are carefully calculated, which can ensure the continuous output of the material without affecting the cooling effect. After the reed bamboo is carbonized, the discharging motor 9 drives the discharging threaded impeller to rotate in the cooling cylinder 5, and the carbonized material is conveyed forward and discharged outward through the discharging part 52, which can also accelerate the cooling speed of the carbonized material.

[0042] An important innovation of the present invention lies in the design of the material moving structure 7. The structure includes a first rotating shaft 71, a second rotating shaft 72 and a rotating motor 73, forming a complete transmission system. Among them, the first rotating shaft 71 and the second rotating shaft 72 are respectively installed on the carbonization cylinder 2 and the water spray activation cylinder 4, and stable rotation is achieved through bearings. Two first sprocket wheels 74 and two second sprocket wheels 75 are respectively arranged on these two rotating shafts, and are connected by a chain 76 to form a transmission chain. It is particularly worth mentioning that a mounting plate 77 is installed between the two parallel chains 76, and a number of moving rods 78 are evenly distributed at the bottom of the mounting plate 77. The cleverness of this design is that when the rotating motor 73 is started, the moving rods 78 can be driven to move in an orderly manner through the chain transmission system, thereby achieving uniform advancement of the material.

[0043] The design of the moving rod 78 is particularly critical. These rods must not only consider the strength requirements, but also the high temperature resistance. By optimizing the cross-sectional shape and arrangement spacing of the rods, sufficient thrust is ensured while avoiding the accumulation and adhesion of materials. In addition, the design of the mounting plate 77 has also been carefully considered. Its weight and strength need to reach a suitable balance point, which not only ensures the stability of the structure, but also does not bring excessive load to the transmission system.

[0044] After the reed segments are transported forward into the carbonization chamber through the feeding and conveying structure, the rotating motor 73 can drive the first rotating shaft 71 to rotate. The rotation of the first rotating shaft 71 can drive the two first sprocket wheels 74 to rotate, thereby driving the two second sprocket wheels 75 to rotate through two chains 76, so that the second rotating shaft 72 rotates, thereby driving the position of the reed segments to move through a number of moving rods 78 at the bottom of the mounting plate 77, and moving the reed segments from the carbonization cylinder 2 to the high-temperature activation cylinder 3 and the water spray activation cylinder 4 respectively, so as to facilitate the subsequent carbonization of the reed segments.

[0045] Another advantage of this chain drive is its maintenance convenience. When parts need to be repaired or replaced, the relevant parts can be easily disassembled without affecting the integrity of the entire system. At the same time, the chain drive has good reliability and durability, and can maintain stable operation even in high temperature environments. The selection of the rotating motor 73 is also very critical, and it needs to have sufficient torque and speed range to meet the operating requirements under different working conditions.

[0046] Through this carefully designed material moving structure, the present invention successfully realizes the continuous and stable transmission of materials between different functional areas. The entire system runs smoothly and reliably, greatly improving production efficiency and reducing operation and maintenance costs. At the same time, this modular design concept also reserves sufficient space for subsequent process improvements and equipment upgrades.

[0047] Combined with the synergistic effect of the above functional components, the present invention successfully realizes the continuous and automated production of reed bamboo activated carbon. The whole set of equipment is not only more precise in process control, but also has achieved significant improvement in energy utilization efficiency, which fully reflects the design concept of modern chemical equipment. Especially in terms of environmental protection performance, through measures such as flue gas recycling and precise temperature control, the development concept of green production is well implemented.

[0048] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A device for making activated carbon from Phragmites australis, characterized in that: It comprises a material drying cylinder (1), a carbonization cylinder (2), a high-temperature activation cylinder (3), a water-spraying activation cylinder (4) and a cooling cylinder (5) which are connected to each other, wherein sealing rings which are connected to each other are provided between the material drying cylinder (1), the carbonization cylinder (2), the high-temperature activation cylinder (3), the water-spraying activation cylinder (4) and the cooling cylinder (5); The material drying cylinder (1) is provided with a connected feeding portion (11), and the cooling cylinder (5) is provided with a connected discharging portion (52); A material moving structure (7) is provided between the carbonization cylinder (2), the high-temperature activation cylinder (3) and the water spray activation cylinder (4); The material drying cylinder (1) is provided with a feeding conveying structure, and the cooling cylinder (5) is provided with a discharging conveying structure.

2. The activated carbon production equipment of Phragmites australis according to claim 1, characterized in that: The feeding conveying structure comprises a feeding motor (8) and a feeding spiral blade (81), and the feeding motor (8) is located on the side wall of the material drying cylinder (1); The feeding spiral blade (81) is rotatably connected to the material drying cylinder (1) and the feeding spiral blade (81) is connected to the main shaft of the feeding motor (8).

3. The activated carbon production equipment of Phragmites australis according to claim 2, characterized in that: The outer wall of the material drying cylinder (1) is wrapped with a heat-insulating material for sealing.

4. The activated carbon production equipment of Phragmites australis according to claim 1, characterized in that: A gas outlet cylinder (21) is provided on the top of the carbonization cylinder (2), and a smoke recovery, combustion and heating chamber (22) is provided on the top of the gas outlet cylinder (21).

5. The activated carbon production equipment of Phragmites australis according to claim 1, characterized in that: An electromagnetic heating wire (31) is arranged inside the high-temperature activation cylinder (3).

6. The activated carbon production equipment of Phragmites australis according to claim 1, characterized in that: A high-temperature water pipe (41) is provided at the inner top of the water spray activation cylinder (4), a plurality of atomizing nozzles (42) are provided on the high-temperature water pipe (41) and are arranged at equal intervals, a water inlet pipe (43) is provided on the high-temperature water pipe (41) and extends to the outside of the water spray activation cylinder (4), and a valve (44) is provided on the water inlet pipe (43).

7. The activated carbon production equipment of Phragmites australis according to claim 1, characterized in that: An interlayer (51) is provided in the cooling cylinder (5), and circulating cooling water is provided in the interlayer (51).

8. The activated carbon production equipment of Phragmites australis according to claim 1, characterized in that: The discharging and conveying structure comprises a discharging motor (9) and a discharging spiral impeller (91), and the discharging motor (9) is located on the cooling cylinder (5); The discharging spiral impeller (91) is rotatably connected to the cooling cylinder (5) and the discharging spiral impeller (91) is connected to the main shaft of the discharging motor (9).

9. The activated carbon production equipment of Phragmites australis according to claim 1, characterized in that: The material moving structure (7) comprises a first rotating shaft (71), a second rotating shaft (72) and a rotating motor (73); The first rotating shaft (71) and the second rotating shaft (72) are rotatably connected to the carbonization cylinder (2) and the water spray activation cylinder (4) respectively; Two first sprockets (74) and two second sprockets (75) are respectively provided on the first rotating shaft (71) and the second rotating shaft (72), and a chain (76) is provided between the first sprocket (74) and the second sprocket (75); A mounting plate (77) is provided between the two chains (76), and a plurality of moving rods (78) arranged at equal intervals are provided at the bottom of the mounting plate (77).

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